In 1299, Paul I Šubić of Bribir took the title Ban of Bosnia (Bosniae dominus) and named his brother Mladen I Šubić of Bribir as the Bosnian Ban. Mladen was Bosnian Ban from 1299–1304. From 1299 Mladen I was in war with Stephen I.

Note: All Bosnian kings had two names and the first of those two names was Stephen. They are traditionally and most commonly numbered after the second of their two names; thus, the fourth and sixth King of Bosnia was not Stephen IV Tvrtko, but Stephen Tvrtko II.